Nuclear Fusion in Yeast and Plant Reproduction

Nuclear fusion is essential for the sexual reproduction of various organisms, including plants, animals, and fungi. During the life cycle of flowering plants, nuclear fusion occurs three times: once during female gametogenesis and twice during double fertilization, when two sperm cells fertilize the...

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Main Authors: Nanami Kobayashi, Shuh-ichi Nishikawa
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/12/20/3608
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author Nanami Kobayashi
Shuh-ichi Nishikawa
author_facet Nanami Kobayashi
Shuh-ichi Nishikawa
author_sort Nanami Kobayashi
collection DOAJ
description Nuclear fusion is essential for the sexual reproduction of various organisms, including plants, animals, and fungi. During the life cycle of flowering plants, nuclear fusion occurs three times: once during female gametogenesis and twice during double fertilization, when two sperm cells fertilize the egg and the central cell. Haploid nuclei migrate in an actin filament-dependent manner to become in close contact and, then, two nuclei fuse. The nuclear fusion process in plant reproduction is achieved through sequential nuclear membrane fusion events. Recent molecular genetic analyses using <i>Arabidopsis thaliana</i> showed the conservation of nuclear membrane fusion machinery between plants and the budding yeast <i>Saccharomyces cerevisiae</i>. These include the heat-shock protein 70 in the endoplasmic reticulum and the conserved nuclear membrane proteins. Analyses of the <i>A. thaliana</i> mutants of these components show that the completion of the sperm nuclear fusion at fertilization is essential for proper embryo and endosperm development.
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spelling doaj.art-ddca9e27a305442f8ba940fc6ee1ea2d2023-11-19T17:49:26ZengMDPI AGPlants2223-77472023-10-011220360810.3390/plants12203608Nuclear Fusion in Yeast and Plant ReproductionNanami Kobayashi0Shuh-ichi Nishikawa1Graduate School of Science and Technology, Niigata University, Niigata 950-2181, JapanFaculty of Science, Niigata University, Niigata 950-2181, JapanNuclear fusion is essential for the sexual reproduction of various organisms, including plants, animals, and fungi. During the life cycle of flowering plants, nuclear fusion occurs three times: once during female gametogenesis and twice during double fertilization, when two sperm cells fertilize the egg and the central cell. Haploid nuclei migrate in an actin filament-dependent manner to become in close contact and, then, two nuclei fuse. The nuclear fusion process in plant reproduction is achieved through sequential nuclear membrane fusion events. Recent molecular genetic analyses using <i>Arabidopsis thaliana</i> showed the conservation of nuclear membrane fusion machinery between plants and the budding yeast <i>Saccharomyces cerevisiae</i>. These include the heat-shock protein 70 in the endoplasmic reticulum and the conserved nuclear membrane proteins. Analyses of the <i>A. thaliana</i> mutants of these components show that the completion of the sperm nuclear fusion at fertilization is essential for proper embryo and endosperm development.https://www.mdpi.com/2223-7747/12/20/3608nuclear fusionfemale gametogenesisfertilizationmembrane fusionflowering plantsbudding yeast
spellingShingle Nanami Kobayashi
Shuh-ichi Nishikawa
Nuclear Fusion in Yeast and Plant Reproduction
Plants
nuclear fusion
female gametogenesis
fertilization
membrane fusion
flowering plants
budding yeast
title Nuclear Fusion in Yeast and Plant Reproduction
title_full Nuclear Fusion in Yeast and Plant Reproduction
title_fullStr Nuclear Fusion in Yeast and Plant Reproduction
title_full_unstemmed Nuclear Fusion in Yeast and Plant Reproduction
title_short Nuclear Fusion in Yeast and Plant Reproduction
title_sort nuclear fusion in yeast and plant reproduction
topic nuclear fusion
female gametogenesis
fertilization
membrane fusion
flowering plants
budding yeast
url https://www.mdpi.com/2223-7747/12/20/3608
work_keys_str_mv AT nanamikobayashi nuclearfusioninyeastandplantreproduction
AT shuhichinishikawa nuclearfusioninyeastandplantreproduction